Thermomechanics of Impact & Penetration

Abstract

Impact and penetration tests were conducted by the Air Force Research Laboratories (AFRL/MN), at striking velocities in the range of 1200 to 1500 meters per second. Steel projectiles were impacted into selected concrete targets. At these striking velocities, the impacting steel projectiles were subjected to a significant mass loss from the nose region. Changes of the nose shape, deposition of melted steel on the nose and the shank of the projectile were observed. In parallel, the Institute of Physics of the Earth of Russian Academy of Sciences (IPE RAS) has reported on the study of the high-speed impact and penetration of metallic projectiles into sand targets. Many interesting observations have been reported from these experiments. Projectiles experienced a significant amount of heat. Phase transitions including melting have been observed in the projectiles. Melting was observed in the nose region.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2005
Accession Number
ADA438868

Entities

People

  • Sathyanarayan Hanagud

Organizations

  • Georgia Tech

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Band Structures
  • Concrete
  • Density Functional Theory
  • Equations
  • Equations Of State
  • Heat Energy
  • Materials
  • Mechanics
  • Military Research
  • Molecular Dynamics
  • Phase Transformations
  • Projectiles
  • Quantum Mechanics
  • Thermodynamics
  • Transitions

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy